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水稻光温敏核不育系农垦５８Ｓ、５０４７Ｓ、Ｗ６１５４Ｓ和ＫＳ—９，在广州（２３°０８′Ｎ）可育期间的育性恢复是不完全的，其花粉可育性和自然结实率均低于正常品种。营养生长期适当的低温对其可育性的恢复是必要的。这些不育系，在华南双季稻区春季繁殖产量高，秋季制种风险小。
Fertility restoration of rice photosensitive genic male sterile line Nongken 58S, 5047S, W6154S and KS-9 in Guangzhou (23 ° 08’N) during fertile period was incomplete, and both pollen fertility and natural seed setting rate Lower than normal breed. Appropriate low temperature during vegetative growth is necessary for the restoration of fertility. These CMS lines have high yield of spring double cropping rice in southern China and low risk of seed production in autumn.